#include <iostream>
#include <map>
#include <cstring>
using namespace std;

struct Student
{
    int id;
    string name;
};

int main()
{
    pair<int, Student> s = make_pair<int, Student>(1, {1, "zhangsan"});
    pair<int, Student> s2;
    s2.first = 2;
    s2.second.id = 2;
    s2.second.name = "lisi";

    map<int, Student> p;
    
   
    return 0;
}